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This is the Apple implementation of the RS-232c interface for the Apple IIc (not IIc+) computer
DIN Pin
Number

Apple Pin
Number*

Pin
Name
Description (may be empty)
1 1 HSKo Handshake out (DTR)
4 2 TxD Data out
2 3 GND Signal ground
5 4 RxD Data in
3 5 HSKi Handshake in (DSR)

 

  * Please note:  Apple's numbering scheme for its' DIN-5 ports do not follow the DIN specification.  Both have been provided for convenience. PC RS-232c interface details.

5 pin DIN female connector layout
5 pin DIN female connector
at the computer
According to 1 reports in our database (1 positive and 0 negative) this pinout should be correct.

Is this pinout
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